Rob Hickman, a member of the group, said the attempt began in October with the Williamsburg Bridge and most recently involved trips across the Cropsey and Stillwell avenue bridges last week, the New York Post reported Monday.

"A lot of people don't like bicyclists and bicycle politics, but everyone loves a unicycle," Hickman said. "We even went down Bedford Avenue in Williamsburg where the Hasidic community rallied to have bike lanes removed, and they loved us there."

Keith Nelson, another member of the group, said he has been documenting the unicyclists' progress on his blog, Unicycle NYC Bridge Tour.

"Many of these are architectural masterpieces and some, well, aren't," Nelson said. "But we take a photo at the middle of every bridge and try not to pick favorites."